As human resource professionals,what do you do if you receive a hostile email or text?

Communication is a vital tool to have in business and personally.  As human resource professionals, you will communicate continuously with many people, including management, employees and consultants.  One area of communication that can be both effective and detrimental is communicating through emails and texts.  Because HR professionals often work with people, they may deal with different emotions communicated by others through emails and texts. So, what do you do if you receive a hostile email or text?